Dynamic Modeling and Simulation of Metro Wheel Wear Based on Cellular Automata Method

doi:10.3901/JME.2019.02.135

Abstract

Abstract: In order to solve the problem of wear prediction between wheel and rail, the wheels of urban rail metro are taken as the research objects, and the dynamic analysis model of wheel-rail wear is established using the method of cellular automata. The wheel-rail contact problem is characterized by local evolution rules, and the self-organization evolution process of the cell's movement rules, damage rules, cutting rules, and shedding rules is analyzed. The dynamic process simulation of the macroscopic abrasion of the wheel on the rail is realized, and the variation of the flange height, the thickness of the flange, and the comprehensive value of the flange during the operation of the urban rail metro is obtained. The interaction between wheel and rail wear is also considered. Using the correlation coefficient to compare the simulation results with actual line operation data, the strong correlation of the comparison results verify the validity of the simulation model. The results show that the wheel-rail contact cellular automaton model is suitable for the dynamic evolution of wheel wear and the established local evolution rules are reasonable, which can describe the change process of the wheel profile. The simulation results of flange height, flange thickness and flange comprehensive value are compared with the measured results to prove the feasibility of cellular automata method in wheel wear. The work provides a new idea for the prediction of wheel-rail wear and has a certain reference value in guiding the development of the reasonable cycle of the reel.

Key words: cellular automaton, flange comprehensive value, flange height, flange thickness, wheel wear

CLC Number:

U260
U270

YIN Borun, WEN Yongpeng, SHANG Huilin. Dynamic Modeling and Simulation of Metro Wheel Wear Based on Cellular Automata Method[J]. Journal of Mechanical Engineering, 2019, 55(2): 135-146.

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